The multi-span 3M™ DBI-SALA® Sayfline Permanent Multi-Span Cable Horizontal Lifeline System is a simple off-the-shelf permanent horizontal lifeline designed for user installation. It is completely customizable, including span length, total system length and even final installation position. The brackets are specifically designed so the system may be installed above, even with, or below the user. You can depend on the horizontal safety systems for mobility and fall protection when working at height. A horizontal lifeline may appear to be a basic line strung between two anchors, but it is not. These systems are used to protect workers operating in the horizontal plane who may not have continuous access to suitable anchorage points.